How can you decide if finding common multiples or common factors is helpful in solving problems

Answers

Answer 1

Answer:

Suppose, John arranges stack of Gold and Silver coins in such a way that each stack either contains Gold or contains Silver coins only.

He also tries to arrange them in the least area.

Here, the number of coins in each stack is the common factor of number of Gold and Silver coins.

If we find the highest common factor, then the area occupied by the coins will be least.

Hence, in this situation, we have to find the common factor.

Suppose, George and David are walking along the circular pathway of a park with different speeds.

The problem is to find the time after which they will meet again at the starting point.

Clearly, here the required time is the common multiple of independent time taken by both.

Answer 2

Answer: it depends if you like working with big numbers or not. if you are working with large numbers and you want to bring them down you can use factors. multiples are easier to work with when multiplying to cancel out and make your sum easier

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Janet walked 7,920 feet in 30 minutes. she walked at the constant rate .

Answers

she walked at a constant rate of 264 feet per minute

What about in hours if u find the answer can u do it step by step

Please help me with this. I think I understand it and know what it is but I just want someone to check it for me to see if I'm right. The width (w) of a rectangular garden is 7 feet longer than the length (L). The area of the garden is 30 square feet.

A. Write an expression to represent the width of the garden in terms of length

Answers

Ok, so
Length = L
Width = L + 7

Since area = length x width, then

30 = L × (L + 7)

Remember that L + 7 Is width so...

L + 7 = 30/L

So the expression for the width in terms of length would be...
w = 30/L - 7

Five less than twice a number is 7

Answers

Make the number a variable x and make an equation
2x-5=7
Then solve
2x=12
x=6
Hope this helps.

5 less than twice a number is 7Is 6.Answer =6

Alex rides 63 miles in 3 hours. Write an equation that shows the relationship between the distance, d and the time, t that he rides if Alex rides at a constant rate of speed?~Help~

1. 63d = t + 3
2. d = 21t
3. 3t = 63d
4. 3d = t + 63

Answers

Answer:

please mark as brainliest ( 3. 3t=63d)

Step-by-step explanation:

The correct answer is:

3t=63d

THIS IS WORTH 17 POINTS

Question 1: Picture
Question 2: Picture

Answers

Question #1:

The surface area of a prism is the area of the outside of the prism, the volume is how much the inside of the container holds.

Let's find the volume and surface area of the prism given.

V = lwh

Plug in what we know:

V = (18.4)(10.9)(8.7)

Multiply:

V = 1744.872 m^3

SA = 2(wl + hl + hw)

Plug in what we know:

SA = 2((10.9)(18.4) + (8.7)(18.4) + (8.7)(10.9))

Multiply:

SA = 2(200.56 + 160.08 + 94.83)

Add:

SA = 2(455.47)

Multiply:

SA = 910.94 m^2

Now find the difference:

Note that these are different measurements.

The volume is measured in cubic meters and the surface area is measured in square meters.

910.94 m^2 = 27493.793 m^3

Find the difference:

27493.793 m^3 - 1744.872 m^3 = 25748.921

Question #2:

The formula for the surface area of a rectangular prism is:

SA = 2(wl + hl + hw)

Plug in what we know:

SA = 2((5)(6) + (3)(6) + (3)(5))

This is the equation we use to find the surface area of this figure.

Multiply:

SA = 2(30 + 18 + 15)

Add:

SA = 2(63)

Multiply:

SA = 126 cm^2

Answer:

hmmmm

Step-by-step explanation:

The ages of five children are 2, 4, 6, 8, and 10 years. Is the mean or median the best measure of center to summarize the ages of the children? A. mean B. median C. Both mean and median summarize the data equally well.

Answers

median is the middle number and mean is adverage so you answer is mean=6 and median is 6 so C. is you awnser hope it helped:)

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